390 research outputs found
The ATLAS Tau Trigger Performance during LHC Run 1 and Prospects for Run 2
Triggering on hadronic tau decays is essential for a wide variety of analyses
of interesting physics processes at ATLAS. The ATLAS tau trigger combines
information from the tracking detectors and calorimeters to identify the
signature of hadronically decaying tau leptons. In Run 2 operation expected to
start in 2015, the trigger strategies will become more important than ever
before. In this paper, the tau trigger performance during Run 1 is summarized
and also an overview of the developments of Run 2 tau trigger strategy is
presented.Comment: LHCP Conference 201
Na-ion dynamics in Quasi-1D compound NaV2O4
We have used the pulsed muon source at ISIS to study high-temperature Na-ion
dynamics in the quasi-one-dimensional (Q1D) metallic antiferromagnet NaV2O4. By
performing systematic zero-field and longitudinal-field measurements as a
function of temperature we clearly distinguish that the hopping rate increases
exponentially above Tdiff=250 K. The data is well fitted to an Arrhenius type
equation typical for a diffusion process, showing that the Na-ions starts to be
mobile above Tdiff . Such results makes this compound very interesting for the
tuning of Q1D magnetism using atomic-scale ion-texturing through the periodic
potential from ordered Na-vacancies. Further, it also opens the door to
possible use of NaV2O4 and related compounds in energy related applications.Comment: Accepted for publication in Journal of Physics: Conference Series
(2014
KINEMATICS OF MEN STRIKING MOTION IN EIGHTH DAN KENDO PLAYERS
The purpose of this study was to explore the time series kinematic variations during the men striking motion in eighth dan kendo players. Moreover, the magnitude of the individual difference and timing at which it appeared were investigated. Ten eighth dan kendo players performed men striking towards one of two targets (men or kote) with maximum effort immediately after an LED lamp was lighted. The motions were recorded using a motion capture system. This study examined the time series kinematic variations during the men striking motion, and revealed that the movements of the shinai (sword), right and left shoulders, and right hip differed substantially among individuals from each standard deviation
Broadband multi-layer anti-reflection coatings with mullite and duroid for half-wave plates and alumina filters for CMB polarimetry
A broadband two-layer anti-reflection (AR) coating was developed for use on a
sapphire half-wave plate (HWP) and an alumina infrared (IR) filter for cosmic
microwave background (CMB) polarimetry. Measuring tiny CMB B-mode signals
requires maximizing the number of photons reaching the detectors and minimizing
spurious polarization due to reflection with an off-axis incident angle.
However, a sapphire HWP and an alumina IR filter have high refractive indices
of about 3.1, and an AR coating must be applied to them. Thermally sprayed
mullite and Duroid 5880LZ were selected in terms of index and coefficient of
thermal expansion for use at cryogenic temperatures. With these materials, the
reflectivity was reduced to about 2% at 90/150 GHz and <1% at 220/280 GHz. The
design, fabrication, and optical performance evaluation of the AR coatings are
described. The coatings were used in a current ground-based CMB experiment
called the Simons Array. They could also be applied to next-generation CMB
experiments, such as the Simons Observatory.Comment: 7 pages, 4 figure
HiGate (High Grade Anti-Tamper Equipment) Prototype and Application to e-Discovery
These days, most data is digitized and processed in various ways by computers. In the past, computer owners were free to process data as desired and to observe the inputted data as well as the interim results. However, the unrestricted processing of data and accessing of interim results even by computer users is associated with an increasing number of adverse events. These adverse events often occur when sensitive data such as personal or confidential business information must be handled by two or more parties, such as in the case of e-Discovery, used in legal proceedings, or epidemiologic studies. To solve this problem, providers encrypt data, and the owner of the computer performs decoding in the memory for encrypted data. The computer owner can be limited to performing only certain processing of data and to observing only the final results. As an implementation that uses existing technology to realize this solution, the processing of data contained in a smart card was considered, but such an implementation would not be practical due to issues related to computer capacity and processing speed. Accordingly, the authors present the concept of PC-based High Grade AntiTamper Equipment (HiGATE), which allows data to be handled without revealing the data content to administrators or users. To verify this concept, an eDiscovery application on a prototype was executed and the results are reported here
HiGate (High Grade Anti‐Tamper Equipment) Prototype and Application to e‐Discovery
These days, most data is digitized and processed in various ways by computers. In the past, computer owners were free to process data as desired and to observe the inputted data as well as the interim results. However, the unrestricted processing of data and accessing of interim results even by computer users is associated with an increasing number of adverse events. These adverse events often occur when sensitive data such as personal or confidential business information must be handled by two or more parties, such as in the case of e-Discovery, used in legal proceedings, or epidemiologic studies. To solve this problem, providers encrypt data, and the owner of the computer performs decoding in the memory for encrypted data. The computer owner can be limited to performing only certain processing of data and to observing only the final results. As an implementation that uses existing technology to realize this solution, the processing of data contained in a smart card was considered, but such an implementation would not be practical due to issues related to computer capacity and processing speed. Accordingly, the authors present the concept of PC-based High Grade Anti-Tamper Equipment (HiGATE), which allows data to be handled without revealing the data content to administrators or users. To verify this concept, an e-Discovery application on a prototype was executed and the results are reported here.
Keyword: Anti-Tamper, e-Discovery, Bitlocker, APIHoo
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